Submission #781980

#	Time	Username	Problem	Language	Result	Execution time	Memory
781980		Lyrically	Boxes with souvenirs (IOI15_boxes)	C++17	20 / 100	1 ms	308 KiB

boxes

#include<bits/stdc++.h>
using namespace std;
#define pii pair<int,int>
#define pb push_back
#define rep(i,n) for(int i=0;i<n;i++)
#define rep1(i,n) for(int i=1;i<=n;i++)
int read(){int x;scanf("%d",&x);return x;}
void print(int x){printf("%d\n",x);}
const int mod=1000000007;
long long delivery(int n,int k,int l,int p[])
{
	sort(p,p+n,[&](int x,int y)
	{
		return min(x,l-x)<min(y,l-y);
	});
	long long res=0;
	for(int i=0;i<n;i+=k)
	{
		vector<int> v;
		for(int j=i;j<=min(i+k-1,n-1);j++){v.pb(p[j]);}
		int tmp=l;
		int ldis=0,rdis=0;
		for(auto x:v)
		{
			if(x<=l-x){ldis=max(ldis,x);}
			else{rdis=max(rdis,l-x);}
		}
		tmp=min(tmp,2*(ldis+rdis));
		res+=tmp;
	}
	return res;
}

Compilation message (stderr)

boxes.cpp: In function 'int read()':
boxes.cpp:7:23: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
    7 | int read(){int x;scanf("%d",&x);return x;}
      |                  ~~~~~^~~~~~~~~

• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 0 / 15
• Subtask 4: 0 / 15
• Subtask 5: 0 / 20
• Subtask 6: 0 / 30